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@article{IVM_1972_12_a9, author = {L. I. Chibrikova}, title = {On the solution of the {Riemann} problem in singular {cases.~II}}, journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika}, pages = {95--101}, publisher = {mathdoc}, number = {12}, year = {1972}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/IVM_1972_12_a9/} }
L. I. Chibrikova. On the solution of the Riemann problem in singular cases.~II. Izvestiâ vysših učebnyh zavedenij. Matematika, no. 12 (1972), pp. 95-101. http://geodesic.mathdoc.fr/item/IVM_1972_12_a9/